Description
An issue in wpa_supplicant all versions before v.2.12 allows a local attacker to bypass proper network context and AKMP matching for PMKSA caching via missing validation in the driver based PMKSA selection path in wpa.c
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wpa | 2:2.11-4 | — |
| Debian 13 | wpa | No fix yet | — |
| Debian 12 | wpa | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wpa | No fix yet | — |
| Ubuntu 26.04 LTS | wpa | No fix yet | — |
| Ubuntu 24.04 LTS | wpa | No fix yet | — |
| Ubuntu 22.04 LTS | wpa | No fix yet | — |
| Ubuntu 20.04 LTS | wpa | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wpa | No fix yet | — |
| Ubuntu 16.04 LTS | wpa | No fix yet | — |
| Ubuntu Pro 14.04 LTS | wpa | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | wpa_supplicant | 2.11-150700.3.6.1 | SUSE-SU-2026:4588-1 |
| SLES 15 SP6 | wpa_supplicant | 2.10-150600.7.11.1 | SUSE-SU-2026:4492-1 |
| SLES 15 SP5 | wpa_supplicant | 2.10-150500.3.9.1 | SUSE-SU-2026:4590-1 |
| SLES 15 SP4 | wpa_supplicant | 2.9-150000.4.45.1 | SUSE-SU-2026:4587-1 |
| SLES 12 SP5 | wpa_supplicant | 2.9-23.26.1 | SUSE-SU-2026:4494-1 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | wpa_supplicant | 2.11-160000.5.1 | SUSE-SU-2026:24144-1 |
| SLES for SAP 15 SP6 | wpa_supplicant | 2.10-150600.7.11.1 | SUSE-SU-2026:4492-1 |
| SLES for SAP 15 SP5 | wpa_supplicant | 2.10-150500.3.9.1 | SUSE-SU-2026:4590-1 |
| SLES for SAP 15 SP4 | wpa_supplicant | 2.9-150000.4.45.1 | SUSE-SU-2026:4587-1 |
| SLES 16.0 | wpa_supplicant | 2.11-160000.5.1 | SUSE-SU-2026:24144-1 |
| SLE Micro 6.2 | wpa_supplicant | 2.11-160000.5.1 | SUSE-SU-2026:24096-1 |
| SLE Micro 6.1 | wpa_supplicant | 2.11-slfo.1.1_3.1 | SUSE-SU-2026:24278-1 |
| SLE Micro 6.0 | wpa_supplicant | 2.10-159998.1.1 | SUSE-SU-2026:24132-1 |
| SLE Micro 5.5 | wpa_supplicant | 2.10-150500.3.9.1 | SUSE-SU-2026:4590-1 |
| SLE Micro 5.4 | wpa_supplicant | 2.9-150000.4.45.1 | SUSE-SU-2026:4587-1 |
| SLE Micro 5.3 | wpa_supplicant | 2.9-150000.4.45.1 | SUSE-SU-2026:4587-1 |
| SLE HPC 15 SP5 | wpa_supplicant | 2.10-150500.3.9.1 | SUSE-SU-2026:4590-1 |
| SLE HPC 15 SP4 | wpa_supplicant | 2.9-150000.4.45.1 | SUSE-SU-2026:4587-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | wpa_supplicant | 2.11-160000.5.1 | openSUSE-SU-2026:22022-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | wpa_supplicant | No fix yet | — |
Advisories 11
- SUSE-SU-2026:24278-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 27, 2026
- WID-SEC-2026-3343 wpa_supplicant: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Oct 25, 2026
- SUSE-SU-2026:24144-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 16, 2026
- SUSE-SU-2026:24132-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 15, 2026
- SUSE-SU-2026:24096-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 10, 2026
- SUSE-SU-2026:4590-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 9, 2026
- SUSE-SU-2026:4588-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 9, 2026
- SUSE-SU-2026:4587-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 8, 2026
- openSUSE-SU-2026:22022-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 7, 2026
- SUSE-SU-2026:4492-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 6, 2026
- SUSE-SU-2026:4494-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Oct 6, 2026